424121540 has 48 divisors (see below), whose sum is σ = 923166720. Its totient is φ = 163501440.

The previous prime is 424121521. The next prime is 424121567. The reversal of 424121540 is 45121424.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 165509 + ... + 168051.

It is an arithmetic number, because the mean of its divisors is an integer number (19232640).

Almost surely, 2^424121540 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 424121540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (461583360).

424121540 is an abundant number, since it is smaller than the sum of its proper divisors (499045180).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

424121540 is a wasteful number, since it uses less digits than its factorization.

424121540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2852 (or 2850 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 23.

The square root of 424121540 is about 20594.2113226023. The cubic root of 424121540 is about 751.3289268434.

Adding to 424121540 its reverse (45121424), we get a palindrome (469242964).

The spelling of 424121540 in words is "four hundred twenty-four million, one hundred twenty-one thousand, five hundred forty".